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Re: Not sure how much longer they will be able to keep crunching in the UK

This lady is a few degrees smarter than the average understanding what already 390 parts per million VOLUME, <u>NOT MASS</u> does in our atmosphere and has in store for the coming decades:

http://www.desdemonadespair.net/2009/10/last-...-dioxide-levels-were.html

Last time carbon dioxide levels were this high: 15 million years ago
Posted by Jim at 8:49 AM

Aradhna Tripati. (Credit: Image courtesy of UCLA)

You must go back 15 million years to find carbon dioxide levels as high as they are today, Earth scientists report. "The last time carbon dioxide levels were apparently as high as they are today and sustained at those levels, global temperatures were five to 10 degrees Fahrenheit higher than they are today," said Aradhna Tripati, UCLA assistant professor of Earth and Space Sciences and lead author.

"The last time carbon dioxide levels were apparently as high as they are today — and were sustained at those levels — global temperatures were 5 to 10 degrees Fahrenheit higher than they are today, the sea level was approximately 75 to 120 feet higher than today, there was no permanent sea ice cap in the Arctic and very little ice on Antarctica and Greenland," said the paper's lead author, Aradhna Tripati, a UCLA assistant professor in the department of Earth and space sciences and the department of atmospheric and oceanic sciences.

"Carbon dioxide is a potent greenhouse gas, and geological observations that we now have for the last 20 million years lend strong support to the idea that carbon dioxide is an important agent for driving climate change throughout Earth's history," she said. …

Last Time Carbon Dioxide Levels Were This High: 15 Million Years Ago, Scientists Report

What caused it??
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Sekerob
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Re: Not sure how much longer they will be able to keep crunching in the UK

If interested, Google a bit... here's the full story: http://www.sciencedaily.com/releases/2009/10/091008152242.htm

Why?... well I learned a few things back when going to college and doing an earth sciences degree in amongst. Supervolcano maybe, large CH4 escape which decays into atmospherically very long lived CO2. Could be any number of things, the continents were on the move, the point being that temperature and CO2 levels coincided and the physics of CO2 has not changed since at least the Big Bang, and what it does with Long Wave back radiation. Air moisture btw has also risen by 5% in last decades [also GHG, on the feedback side]... other sign of warming, and that produces more snow in winter with the right winds... that seems to be melting off rather quick, not because of tephra [we told DA before yet he continues to selectively forgets anything inconvenient], but because of CO2 coupled with the replacing dirt we spout in the air globe around with us altogether 6.8 billion far exceeding volcanic mean output... by about a factor of 30. Because it is very slow and steady, we do not notice between one day of weather and the next when looking out that window... but over quite a few decades the sum leads to but one conclusion. It's US.
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[Edit 1 times, last edit by Sekerob at Apr 17, 2010 7:27:27 AM]
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Sekerob
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Re: Not sure how much longer they will be able to keep crunching in the UK

PS,

DA, on your little tephra escapade, let me remind you on some of the surely inconvenient bits [mentioned all before in this and the disappeared thread]

- Global dimming due human activity
- Atmospheric Brown Clouds, man made
- Black Carbon sooth [from your most loved coal plants for instance]

Please chew on these for a while.

have a nice restful weekend.
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[Edit 2 times, last edit by Sekerob at Apr 17, 2010 8:07:58 AM]
[Apr 17, 2010 7:49:08 AM]   Link   Report threatening or abusive post: please login first  Go to top 
David Autumns
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Re: Not sure how much longer they will be able to keep crunching in the UK

Not only are there Turneresque Sunsets to watch out for over the coming days on account of the Volcano but also Aurora can now be thrown into the mix

http://www.spaceweather.com/

A CME is about to hit us over the next couple of nights

I will not forget the beautiful purple fringed filled night sky over Coventry back in 1989

Here's hoping

Dave

p.s. Latest update - no flights out of the UK until at least 1am tomorrow
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Sekerob
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Re: Not sure how much longer they will be able to keep crunching in the UK

You must have massively lucked out how you could fly out from Italy to the UK, when even here the twice daily to Milan has been laid lame and the cheap-o to Bruxelles has not been going either.

http://www.ryanair.com/en/notices/gops/100414-ICELAND_ASH-GB

John Cleese took a taxi from Oslo to Belgium, whose airspace is shut down.

Here's to cleaner air with the help of a little natural event.
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retsof
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Re: Not sure how much longer they will be able to keep crunching in the UK

Not only are there Turneresque Sunsets to watch out for over the coming days on account of the Volcano but also Aurora can now be thrown into the mix

http://www.spaceweather.com/

A CME is about to hit us over the next couple of nights

I will not forget the beautiful purple fringed filled night sky over Coventry back in 1989

Here's hoping

Dave

p.s. Latest update - no flights out of the UK until at least 1am tomorrow
A CME might hit us, but why would you trust that information any more than any other, from your quiet sun?
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[Apr 17, 2010 11:54:08 AM]   Link   Report threatening or abusive post: please login first  Go to top 
retsof
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Re: Not sure how much longer they will be able to keep crunching in the UK

Try this to find out what all that tephra form the Icelandic Volcano will do in our atmosphere
Spread that all around and it may only be 1-2 parts per billion, a trace of a trace. If it does, you will have to notice the action of a trace of something. At the moment it has a more concentrated effect on Northern Europe, similar to the effect that weather would have there, and not here, since our airplanes are still flying.

Oh, I forgot. The weather in the U.K. determines the climate everywhere.
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[Edit 1 times, last edit by retsof at Apr 17, 2010 1:20:10 PM]
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retsof
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Re: Not sure how much longer they will be able to keep crunching in the UK

If our atmosphere was an orchestra CO2 would be 3rd Clarinet easily drowned out by the piercing note of the single Oboe (Water Vapour)
There is a reason that orchestras do not let 3rd clarinets play much. The oboe only lasts until the tympani and brasses start. It is difficult to sustain an oboe for long periods due to that tiny mouthpiece. The player could pass out due to dizziness.

What a great metaphor, NOT! By the way, let us not forget what could most easily ruin an oboe -- excess water vapo(u)r.

http://www.baroqueoboes.com/supplies/content_supplies_care.html

OBOE CARE INSTRUCTIONS

To protect your new instrument from cracking, it will be necessary to give it a gradual break-in period. Refrain from playing it for longer than a half hour a day for the first couple of weeks and slowly increase your practice time to one hour over a few months.

Always dry out the moisture in the bore after playing, with the cloth swab provided, including the middle joint socket where water tends to accumulate. You should oil your instrument (inside and out) at least 3 or 4 times a year, especially in the winter when the humidity is low (less than 30%) or after the oboe has not been played for a long time.

To protect the leather pads, remove the keys by pushing out the axles with a paper clip pusher and use a feather or pipe cleaner to distribute the oil in the bore. Let the oil soak in for a few hours or overnight and then be sure to completely wipe off any excess oil with a paper towel before putting the keys back on. Be sure to remove oil from the tone holes, as well. We recommend using a thin grade of almond or rapeseed oil. These oils can be found in health food stores or shops that supply massage oils.

IMPORTANT! In order to guarantee that your instrument remains in optimum playing condition, you should have your instrument re-bored after about a year of use, because of the inevitable shrinkage in the bore from repeated wetting and drying. We will be happy to do this for you free of charge (for our instruments), but you will be responsible for all shipping and insurance charges.

Here's what you need to be aware of to keep from cracking the top joint of your oboe. Wood responds to moisture (i.e. liquid water or water vapor in the air) by expanding when it absorbs it or contracting if it dries out and looses it., much like a common sponge in your sink.

Cracking is the result of the wood fibers next to the bore becoming so saturated with moisture(expanding)that the dryer fibers on the outside come into conflict with it (contracting). The wood is normally able to withstand these forces, but if they become too extreme...POP! the outside will split open to relieve the tension. To keep these forces under control, you need to minimize the moisture inside the instrument and maximize it on the outside.

Condensation from warm breath blown into a cold instrument is the main way moisture can become too extreme. To avoid this, always warm the top joint to the touch before starting your practice. (A warm towel or hot water bottle can work, or put the joint under your arm pit for a few minutes)

Never practice in a cold room! If this is unavoidable, swab out the top joint, (with the cotton swab provided), every 10 minutes, and keep your practice to a half hour at first and then up to a hour, if you must.(Keep swabbing out!) The basic idea here is moderation. It is important that the moisture in the bore can eventually evaporate every day and relieve the tension in the wood.

Oiling can help slow down the movement of moisture in and out of the wood. This must only be done in the bore when it is dry, otherwise you will compromise its ability to dry out and trap moisture where you want it to be minimized. Wait a couple of days without practicing to make sure of this before you oil inside. You can oil the outside frequently (no waiting) and you will see how it absorbs the oil if it has dried out from low humidity in the air.

Don't store the oboe next to a stove or heater for this reason. If you have a humidity gauge, keep track of it and put a kettle of water on the stove if the humidity gets below 40%. Practicing in a warm humid room is much easier on your instrument than if you are in a cold dry one.

and the oboe remedy? not wind, coal, solar or nuclear ... it's OIL! It may not be petroleum, but it is still an oil.
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[Edit 2 times, last edit by retsof at Apr 17, 2010 1:32:08 PM]
[Apr 17, 2010 1:18:51 PM]   Link   Report threatening or abusive post: please login first  Go to top 
Sekerob
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Re: Not sure how much longer they will be able to keep crunching in the UK

Goes to show how difficult it is for DA to face the music!
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David Autumns
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Re: Not sure how much longer they will be able to keep crunching in the UK

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